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Coolent leak

Discussion in '1st Gen. Tacomas (1995-2004)' started by Firstgentacoooo0, Jan 28, 2025.

  1. Jan 28, 2025 at 6:57 PM
    #1
    Firstgentacoooo0

    Firstgentacoooo0 [OP] Member

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    I have a bad coolent leak, I installed a new water pump.
    It looks like is coming ,from behind, the crankshaft pully.
    Dose any body now if there is, some kind of seal behind it?

    17381193657342875542429421593655.jpg
     
  2. Jan 28, 2025 at 7:01 PM
    #2
    slater

    slater Well-Known Member

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    isn't the water pump right above the crank pulley?
    I dont know these engines...
    but if water pump goes into timing cover, is there a coolant port within the timing cover gasket?
    that could also be another source....
    if you feel youre 100% someone didnt screw-up the wp install

    I see it...
    to the left of the block, behind the water pump...
    or corner of wp...
    see the plate the wp mounts to, timing cover...
    take a good look where that plate mounts to the block, again, assuming coolant goes through it & theres a coolant port within the gasket....

    somebody will come along that knows ins / out of these engines...

    end of the day, need to find the source, inspection mirror, look harder, change your positioning, whatever it takes, not just roll the dice.
     
    Last edited: Jan 28, 2025
  3. Jan 28, 2025 at 7:06 PM
    #3
    Dalandser

    Dalandser ¡Me Gustan Las Tacos-mas!

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    Yes, did the leak change at all before and after the install of the new pump or did it only begin after the new pump was installed?
     
  4. Jan 28, 2025 at 7:07 PM
    #4
    Firstgentacoooo0

    Firstgentacoooo0 [OP] Member

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    Yes just what I was thinking
     
  5. Jan 28, 2025 at 7:07 PM
    #5
    fxntime

    fxntime Well-Known Member

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    It's coming from the water pump area and running down the front of the block, there isn't any antifreeze at the crank area.
     
  6. Jan 28, 2025 at 7:11 PM
    #6
    Firstgentacoooo0

    Firstgentacoooo0 [OP] Member

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    Is it possible to add, some type of silicone, on top of the new water pump seal?
     
  7. Jan 28, 2025 at 7:13 PM
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    fxntime

    fxntime Well-Known Member

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    No, it's either the seal/weep hole, bolt/s or the gasket area.
     
    Last edited: Jan 28, 2025
  8. Jan 28, 2025 at 7:44 PM
    #8
    slater

    slater Well-Known Member

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    not what you want to do, will just add to the problem...
    more times than not, adding silicone to a gasket or seal, doesnt help it seal better, does the opposite...
    if you can actually see your wp gasket area leaking, it wasnt cleaned well enough, gouged the metal trying to clean it, etc...
    I have no idea, is it a paper gasket, rubber oring, etc?
    if its a paper gasket, great idea to use a very light film of spray glue, 3m spray adhesive to just tack the gasket in place...
     
  9. Jan 28, 2025 at 7:54 PM
    #9
    Firstgentacoooo0

    Firstgentacoooo0 [OP] Member

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    Yes it's like carbord seal
     
  10. Jan 28, 2025 at 7:56 PM
    #10
    Firstgentacoooo0

    Firstgentacoooo0 [OP] Member

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    I'm buying a new seal, and redoing the pump tomorrow. Hopefully that works
     
  11. Jan 28, 2025 at 8:28 PM
    #11
    Dalandser

    Dalandser ¡Me Gustan Las Tacos-mas!

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    New OEM 5vz housing seals are metal (or something similar) and silicone. Nothing else (RTV etc.) needed. My 2.7 OEM water pump seal is a composite and won't need anything either.
     
    Last edited: Jan 29, 2025
  12. Jan 28, 2025 at 9:09 PM
    #12
    slater

    slater Well-Known Member

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    if it was cardboard, paper, whatever you want to call it. What did you use to get all the old material off the timing cover?
    Cant leave anything behind, no small chunks or residual gasket, or gouge the cover...
    cant imagine having to do that job with a hand scraper or a razor blade, yuck!!!!
    As a pro, 3" die grinders with 3m rolls discs...
    easy!!!!
     
  13. Jan 28, 2025 at 9:11 PM
    #13
    Dalandser

    Dalandser ¡Me Gustan Las Tacos-mas!

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    WD-40, plasic scrapers, razor blade for major buildup on flat surfaces, and red scotchbrite pads if you don't have an air compressor
     
  14. Jan 29, 2025 at 4:43 PM
    #14
    Firstgentacoooo0

    Firstgentacoooo0 [OP] Member

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    Ok so I bought a new seal, and cleaned like you guys told me. It work no leak, pumps working good.
    Thanks for all the advice .
     
    Dalandser likes this.

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